Pump-head



S. M. FULTON.

I PUMP'. APPLICATION FILED JAN. M. 20.

1357394.- Patented Nov. 2, 1920.

2 SHEETS-SHEEI l.

W 7115 &

s. M. FULT-ON.

PUMP.-

APPLICATION FILED JAN. !4. !920.

2 SHEETS-SHEET 2.

Patenta& Nov. 2, 1920.

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UNITED STATES PATENT orrce.

SAMUEL M. FULTON, OF POMGNA, CALIFORNIA.

PUMP-HEAD.

Application filed January 14, 1920.

To &VZ whom izi may cmwcrn;

Be it known that I, SAMUEL M. FULTON, {L citizen ot the United States, residing at Poniona, in the County ot Los Angeles, State of Calitornia, have invented e new and useful Punip-Head, of which the following is e specification.

This invention relates to pump-heads, and particularly to zi structure 'for driving e plurzlity oi? plungers by e verithle inotion to secure :1 continuous flow The object oi' the invention is to provide :in improved pump Operating ne'chnnism designed to occupy u ininiinuni space end including provisions for supporting the crenh shutt indepeiulently oi: its journal heerings to relieve seid shait heorings of the weight ol?, and the downward Stress epplied to, the

'crank shitit.

Figure l is e trent elevetien of the umphead, some oi the `gerts being in section and the well pit well eesing and discharge pine being shown in section.

Fly; 2 is e top plan View.

Fig. 3 is zt side elevntion.

Fig, e is e detaileo 'vertical section th rough the cross head and pninp rods.

Fig. 5 is a detail elevetion oli the eranh shutt.

lln the (lrewing 's li designntes a toundetion preternhly 'torned of conerete and provided with e reetnn ulzir well pit 2. niheddcd :in the roncrete 'l onnchtion with the upper surizccs lying flush with the upper surface ot seid toundetion provide opposed horizontal lis each torined oi' perallel l. bezrrns 3,

sepereted to form longitudinel intermediate slots 5. The beoins 3. 4:' are held in spzn'ed relaton by specing; bloclrs 6 which are maintained in position hy trensverse bolts 7, 8 extending through alined oriiices in the bea-:Line and in the bloclrs. the treme which supports the Operating nechenism comprises two opposed side frames 9, 10 longitndinelly slidahle upor the l: beatin tretks or sills end maintained in spziced relation by a tie har or yoke 'll secured to the npper 'forward ends ot the side frames. The .treme is seion upon the traclrs cured in adjnsted posit hy bolts 12 and nuts 13.

It will be evident thot, after disconnecting the opereting inechtnisin from the pump,

and efter loosening the nuts 13, the rame may he moved on its tracks away 'ironi directly over the well, when desired.

The mein drive shitit l is ourneled n Speciflcaton of Letters Patent.

Pateted Nov. 2, 1920.

Serial Ne. %1,480

the bearings 17, 1 8 in the rear portions of the side frames 9, 10 and has fixed to one end, beyond the side imune 10, e belt wheel 19 which is driven hy a motor 20 through a belt 21. A belt tightenng device such as is indicated at 22 may be enployed if desired. A crank shatt 23 is journaled in heerings 2%, 2:3 in the forward portions of the side frames 9, 10 and hes fixed to one end, beyond the side renie 9, e gear wheel 26 which meshes with e gear pinion 27 fixed to the mein shutt 16. (See Fig. 2 The cranl( shait is iornied with crenk ernis 28, 29 ndjecent each side france end connected by crenk pins 30, 81 respectively, to crank dishe 32, 33, the dishe else being` connected by e central crenl pin 34. (See Fig. The emni: disks rest upon reletively alined rollers of), 36 which ere carried by a shaft 37. Seid shatt is journaled in hearing hlochs 38-38 cerried by the side :treni es, This structure provides e support ot the media] portion of the Cl'ftlll shutt to relieve the crzink Sl'ltft beerings ot the mejor portion of the load of the working strolres of the punp.

Journeled in hearings LG- il at the reat 'portions ot the side frames is e benin shetit 4-2 on which aire journeled three weliiing henns -l ll each having e hearing; sent 46 engaging the shalt and Secured in position hy evnporeting hearing ceps li'. he three walking beeins ;tre ot duplieate Construction, u description of one of them will heroin suiiice. .Each heen comprises u skeleton treme iorning arallel slide ways SO-h in which slides a crenk pin block the slide block of euch benin resgecuively coopereting with its eonipenion Granit-'pin of the crenh shei't. The benin 'treme is also provided with nn orifice 53 providing cleeronce for non-interierence with the main drive shar t 16 which projects through said orifi e and the forward end oi" seid renie h es pivoted hearing connection with the pnnp.

A Vertical guide rod 75 is detechzibly clarnped in the outer inediel portion o'E the tie yoke ll end is Secured in desired nienner at its lower end, *toro instence, by being screw-threaded into the leng e 76 ot 'the well-head, as shown in Figs. l-3. The tlange 76 is engulerly disgosed relative :to the red 75 end is Secured to the well-head 77 by bolts "(8, the well casing and tube being attached to said head in eny suitable menner with the tube communicating With the discharge pipo 79. This Construction of well-head provides a discharge having a gradual bend free from sharp turns as would retard the flow.

Links 80-81 are pivotally connected at 54 to the center Walking beam 4:4 and to a guide head 82 Secured to the upper end of an inner punp rod 83 which extends downwardly in telescopic engagement withinan outer tubular pump rod S i. The guide head 82 has a split hearing 85 slidably engaging the guide rod 75,`and by which the pump rod 83 is guided in i s reciprocating movements.

The two outer walking beams 43-45 are respectively connected by links 86-87 to opposite sides of a cross-head 88 which is secured to the top of the tubular pump rod 84 (see Fig. a a suitable packing being provided between the cross-head and inner ipunp rod 83, as indicated at 89.

In operation, the drive'shaft 16 being driven at a uniform rate of speed rotates the crank shaft 23 through the medium of the gear pinion 27 and gear wheel 26, the' crank pins of the crank shaft being journaled in the slide blocks and the slide blocks slidable in their respective walking i beam slide ways. As the two outside crank pins 30-31 are coincidently alined, the outside walking beams 43-45 will operate in unison to reciproeate the outer tubular pump rod, and as the center crank pin 34 is positioned diametrcally opposite to the pins 30-31, the walking beam will reciprocate the inner pump rod in opposite directions. The ends of the strokes to which the oppositely positioned crank pins raise or lower their respective walking beams are indicated by dotted lines a-b on Fig. 3 and as these positions are relatively angulariy disposed, it follows that, when one pump rod reaches the end of a stroke the other pump rod has already started some distance on the next stroke, thereby producing a stroke lap in the operation of the pump rods, which insures a continuous pumping operation. e

The invention herein described provides a pump head mechanism which as a unit may be readily moved from its normal position over the well pit to a position which will afford free access to said pit, also by positioning the entire Operating mcchansm between the two side frames the width of the pump connections extendng into the pit is reduced to a minimum so that the supporting beams may be closely positioned together to aiford a sturdy conipact structure especially adaptable for use in wells in' which it is undesirable or impossible to provide well pits of large dimensions. The provision of the supporting rollers for carrying the weight of the crank shaft nsures long life to the crank shaft bearings and guarcls against any distortion of the shaft.

I claim:

1. In a pump -head, parallel walking beams, a crank shaft having opposed crank arms, intermediate crank disks and crank pins connecting the adjacent arms and disks, rollers supporting the crank disks, and slide blocks engaging the crank pins and walking beams.

2. In a pump -head, parallel walking beams having longitudinal slide ways, a crank shaft having opposite crank arms, intermediate crank disks and crank pins connecting the adjacent arms and disks, rollers supporting the crank disks, and slide blocks journaled on the crank pins and slidable in the slide ways.

In a pump-head, opposed side frames, pivoted para-llel walking' beams positioned between said frames and having longitudinal slide ways, a crank shaft having crank arms adjacent each side frame, crank disks between the crank arms and crank pins connecting the arms and disks, rollers supporting the crank disks, and slide blocks journaled on the crank pins and slidable in the slide ways.

4:. In a pump-head, a' drive shaft, a crank shaft, 'and a pivotal hearing red, a frame providing journal bearings for said shaft, a walking beam in operative connection with the crank shaft, and independent means for supporting the crank shaft.

5. ln a pump-head, opposed side frames, an Operating mechanisn including a crank shaft and positioned entirely between the side frames, and independent means between the frames for supporting the crank shaft.

6. In a pump-head, opposed side frames, an Operating' mechanism including a crank shaft having a crank disk and entirely positioned between the side frames, and an independent means engaging the crank disk to support the crank shaft.

In a pump head, an Operating mechanism including a crank shaft, opposed side frames providing journal bearings for said shaft, and means independent of the journal bearings for supportingthe shaft.

Signed at Pomona, California, this ?th day of January, 1920.

SAMUEL M. FULTON.

lVitnesses:

HELEN ELIZABETH OBR1EN, H. H. MORRIS. 

